Inspection Procedure

1. Measure the voltage according to the value(s) in the table below.

   Standard Voltage 

   STANDARD VOLTAGE
   
   

   Tester Connection	Switch Condition	Specified Condition
   I6-5 (REV) - Body ground	Ignition switch ACC, shift lever in R	11 to 14 V
   	Ignition switch ACC, shift lever in P	Below 1 V

NG: Go to step 2 

Fig 1: Identifying I6 Navigation Receiver Assembly Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE NAVIGATION RECEIVER ASSEMBLY  (See REMOVAL  )

1. Disconnect the I6 navigation receiver assembly connector.
2. Disconnect the D21 park / neutral position switch assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   STANDARD RESISTANCE
   
   

   Tester Connection	Condition	Specified Condition
   D21-1 (RL) - I6-5 (REV)	Always	Below 1 Ω
   D21-1 (RL) - Body ground	Always	10 kΩ or higher

4. Measure the voltage according to the value(s) in the table below.

   Standard Voltage 

   STANDARD VOLTAGE
   
   

   Tester Connection	Switch Condition	Specified Condition
   D21-2(RB) - Body ground	Ignition switch off	Below 1 V
   	Ignition switch ACC	11 to 14 V

   Fig 2: Identifying I6 Navigation Receiver Assembly And D21 Park / Neutral Position Switch Assembly Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Reconnect the navigation receiver assembly connector.
6. Reconnect the park / neutral position switch assembly connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to Next Step 

1. Disconnect the D21 park / neutral position switch assembly connector
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   STANDARD RESISTANCE
   
   

   Tester Connection	Shift Lever Position	Specified Condition
   1 (RL) - 2 (RB)	Ignition switch ACC, shift lever in R	Below 1 Ω
   	Ignition switch ACC, shift lever in P	10 kΩ or higher

   Fig 3: Identifying D21 Park / Neutral Position Switch Assembly Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   OK	A
   NG (for A750E)	B
   NG (for A750F)	C
   NG (for AB60E)	D
   NG (for AB60F)	E

3. Reconnect the park / neutral position switch assembly connector.

B: REPLACE PARK / NEUTRAL POSITION SWITCH ASSEMBLY  (See REMOVAL )

C: REPLACE PARK / NEUTRAL POSITION SWITCH ASSEMBLY  (See REMOVAL )

D: REPLACE PARK / NEUTRAL POSITION SWITCH ASSEMBLY  (See REMOVAL )

E: REPLACE PARK / NEUTRAL POSITION SWITCH ASSEMBLY  (See REMOVAL )

A: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE  (See PROBLEM SYMPTOMS TABLE  )